body,html{
	font-weight: 200;
	font-family: 'PingFang SC',arial,helvetica sans-serif;
}
.clearfix{
	display: inline-block;
	&::after{
		display: block;
		content: ".";
		height: 0;
		line-height: 0;
		clear: both;
		visibility: hidden;
	}
}

@media (-webkit-device-pixel-ratio:1.5),(device-pixel-ratio:1.5) {
	.border-1px{
		&::after{
			transform: scaleY(0.7);
		}
	}
}
@media (-webkit-device-pixel-ratio:2),(device-pixel-ratio:2) {
	.border-1px{
		&::after{
			transform: scaleY(0.5);
		}
	}
}
@media (-webkit-device-pixel-ratio:3),(device-pixel-ratio:3) {
	.border-1px{
		&::after{
			transform: scaleY(0.33333);
		}
	}
}
